Sundown Audio U-15 D2 15 1500W RMS Dual 2-Ohm U-Series Subwoofer

The Sundown Audio U-15 is a powerful 15-inch subwoofer with a 1500 watt RMS power rating. It is designed to be used in sealed, ported, or bandpass enclosures, making it a versatile choice for various audio setups. The subwoofer has a mounting depth of 9.05 inches, a mounting diameter of 14.01 inches, an outside diameter of 15.59 inches, and a magnet diameter of 8.66 inches.

Regarding the technical specifications, the U-15 has a DC resistance (Re) of 3.8 Ω, a resonance frequency (Fs) of 37.9 Hz, and an equivalent volume (Vas) of 54.0 L. The electrical Q factor (Qes) is 0.34, the mechanical Q factor (Qms) is 3.10, and the total Q factor (Qts) is 0.31. The voice coil inductance (Le) is 2.44 mH, and the force factor (BL) is 30.7 NA. The moving mass (incl. air load) (Mms) is 355.7 g, and the suspension compliance (Cms) is 0.05 mm/N. The sensitivity of the subwoofer is 91.2 dB 1w / 1m.

For box recommendations, the U-15 is suitable for a sealed enclosure of 2.0 cubic feet or a ported enclosure of 3.0 cubic feet. The displacement of the subwoofer is 0.24 cubic feet, and the recommended tuning is 32 Hz. The recommended port area is 48 square inches.

Overall, the Sundown Audio U-15 is a high-performance subwoofer that offers excellent power handling, versatility, and technical specifications, making it a compelling choice for audio enthusiasts seeking a powerful and reliable subwoofer solution.

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